Question

Which of the following options correctly describes the types of chemical bonds/interactions found in the primary, secondary, and tertiary levels of protein structure?

A) Primary structure: Peptide bonds; Secondary structure: Hydrogen bonds; Tertiary structure: Hydrophobic interactions
B) Primary structure: Hydrogen bonds; Secondary structure: Peptide bonds; Tertiary structure: Disulfide bonds
C) Primary structure: Disulfide bonds; Secondary structure: Hydrophobic interactions; Tertiary structure: Peptide bonds
D) Primary structure: Hydrophobic interactions; Secondary structure: Disulfide bonds; Tertiary structure: Hydrogen bonds

Answer 1

The correct option is: Primary structure: Peptide bonds; Secondary structure: Hydrogen bonds; Tertiary structure: Hydrophobic interactions.

Step-by-step explanation:

The correct option that describes the types of chemical bonds/interactions found in the primary, secondary, and tertiary levels of protein structure is:

A) Primary structure: Peptide bonds;
Secondary structure: Hydrogen bonds;
Tertiary structure: Hydrophobic interactions.

In the primary structure, the amino acids are linked together by peptide bonds. In the secondary structure, the peptide chain forms either alpha helices or beta sheets, which are stabilized by hydrogen bonds. In the tertiary structure, the overall 3D structure of the protein is formed through hydrophobic interactions, where nonpolar side chains cluster together to minimize contact with water.